X 4 2x 2 1 0 solve July 8, 2019 16 32 64 128 Solve x 4 x 3 2x 2 2x 1 0 Solve x 4 2x 3 3x 2 2x 1 0 Solve x 6 2x 5 2x 4 2x 2 2x 1 0
